Finding the Fourth Proportional to 105,139.54, 157,708.50 and 26,253.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,139.54 : 157,708.50 = 26,253.24 : x
2. Step 2: Convert to fraction form
   105,139.54/157,708.50 = 26,253.24/x
3. Step 3: Cross multiply
   105,139.54x = 157,708.50 × 26,253.24
4. Step 4: Simplify right side
   105,139.54x = 4,140,359,100.54
5. Step 5: Solve for x
   x = 4,140,359,100.54/105,139.54
6. Step 6: Final answer
   x = 39,379.66